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Finding the Fourth Proportional to 486,874.44, 671,918.31 and 272,015.73

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Solution

The fourth proportional to 486,874.44, 671,918.31 and 272,015.73 is: 375,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,874.44 : 671,918.31 = 272,015.73 : x
  2. Step 2: Convert to fraction form
    486,874.44/671,918.31 = 272,015.73/x
  3. Step 3: Cross multiply
    486,874.44x = 671,918.31 × 272,015.73
  4. Step 4: Simplify right side
    486,874.44x = 182,772,349,595.02
  5. Step 5: Solve for x
    x = 182,772,349,595.02/486,874.44
  6. Step 6: Final answer
    x = 375,399.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.